Hose coupling



Sepe. 2. 1924. 1,507,230l

C. A. CLAFLIN HOSE COUPLING Flled July 29 1920 l U j 2/ )f f f5.5. 25 22 /6 /a 20 /2 Patented Sept. 2, 1924.

CHARLES A. CLAFLI'N, OF MEDFORD, MASSACHUSETTS.

HOSE COUPLING.

Application lcd July7 29, 1920.

To all whom it may concern.:

Be it known that I, CHARLES A. CLAFIJN, a citizen of the United States, residing at Medford, in the county of Middlesex and 5 State of Massachusetts, have invented new and useful Improvements in Hose Couplings, of which the following is a specification.

This invention relates to a Huid-conducting coupling, adapted to connect two sections of a conduit, such as a fixed conduit section 1 and a length of flexible hose, or two lengths of flexible hose, the coupling being composed of a female member adapted for connection with one conduit section, and a male member, adapted for connection with the other conduit section.

5 The object of the Vinvention is to provide improved means, whereby said members may be quickly, conveniently, and securely interengaged and separated.

' The invention is embodied in the improvements hereinafter described and claimed, permitting the interengagement of the members by two manual movements of the opcrater, followed by an automatic movement "of one of said members completing the inter- -en agement.

f the accompanying drawings forming a part of this specification,-

Figure 1 is an end vie-w of the male member of my improved coupling, without the pressure-applying head hereinafter described.

Fi mem er.

Figure 3 is a section on line 3-3 of Figure 2.

' Figure 4 is a perspective sectional view, showmg a portion of the female member` Figure 5 is a longitudinal section, showing the two members interengaged.

Figure 6 is a section on line 6-6 of Figure 5.

b Figure 7 is an end viewof the male memer, Figure 8 is a section on line ure 7 Figure 9 is an end view of the pressure- Qapplying head, as it appears before its engagement with the male member.

' Figure 10 iS e section en line 1040 0f Figure 9.

re 2 is an end view of the female and the pressure-applying head thereon.

8-8 of Fig- Sel'ial No. 399,732.

Figure 1l is a view similar to Figure 10, showing the head completed.

The same reference characters indica-te the same parts in all of the figures.

12 represents the tubular female member of the coupling, said member having at one end portion means for connection with a..

conduit section. As here shown, the member 12 is provided with an externally screwthreaded nipple 13, and a hexagonal wrenchengaving portion 111, whereby the member may internally-threaded fixed conduit section. It is obvious, however, that the member 12 may be provided with means for connection with a length of hose. A

rThe bore of the member 12 is provided,v

with an annular enlargement 15, and with spaced apart segmental ribs 16 in the outer portion of Said enlargement. The ends of said ribs are spaced apart to form longitudinal slots -17 communicating with the portion of the enlargement 15 behind the ribs. The inner sides of the ribs 16 are provided with recesses 18, opening into the bore enlargement 15.

19 represents the male member having an entering portion, provided with oppositely projecting studs 20, adapted to be passed through the longitudinal slots 17 by an endwise movement of the male member, and to be moved laterally in the bore enlargement 15 by partial rotation of the male member into position to enter the recesses 18.

The male member is provided with pressing means, adapted to bear on the outer `and of the female member, and automatically force the studs 20 backward into the recesses 18, so that the male member may be interengaged with the female member by two manual movements, namely, a. longitudinal movement and a. partial rotary movement of the male member, followed by an automatic backward movement caused by the said pressing means.

I prefer to embody the pressing means as next described.

be turned to screw the nipple 13 into an On the male member, at the rear end of ment and studs is a pressure-applying annular head 22, formed to abut against the outer end of the female member. Said head is provided with an annular flange 23, which is movable one,v and uided b' the annular enlargement 21, saidg head, ange, and enlargement forming an annular spring chamber surrounding the male member. AL helical spring 24, surrounding the male member, is interposed between the enlargement 21 and head 22, and norm/allf holds the head in yielding Contact with e studs 20, as shown b Figure The hond constitutes a loose abutment for one end of the, spring, and prerents contact o the opting with the stur-.ls 20.

Whon the male member is inserted. in the female. member, the head 22 is. forced by its oontaot with the female member from tho petition shown, by Figure 8. the Harige 23 sliding on the' guiding enlargement 21.. until the s tuds 2.0 ente-r theboro. enlargement. 1.5. When the .na'o member is turned. to register the studs 20 with the recesses 1.8, the'oompressed spring 24 acts. through the head: 22 to force the malo ondfwlse, and cause the siulds 20 to enter the recesses 18, as indoateot by Figures 5v and 6.

The two m/mbers are now firmly interengagod, So that neither can be rotated relatively to the other, Without first applying sufi'cient pressure to remove the studs 20 from the 18j.

The outer end portion of the male member `be formed in any suitable Way, for connection with a conduit section, such as a lngth of exble The outer sides of' the' segmental ribs. 16 are Hush with tho outer end of the female member 12, and form therewith an, annular end face from which lille Slots. 17,' extend' Vto the bore enlargement 15'. The outer ends of' the. Slots are therefore exposed on said end face, so that the operation of inserting the studs 20= in. the Slots, is facilitaied, the operator being en abled to quickly and conveniently insert the studs in the slots. i

lt will be seen by reference to Figure 8, that the head 22, and its flange 23 and the are i'nseparabl'y engaged With the ma v"e inem' r, the head normally bearing en the studs 26, and the flange at the same time bearing on the enlargement 21.- Tno male member is proferabylmado as. a Single casting, which includes t- .;o. studs 2.0 and. enlargemont 21. The head 22 and its flange 23 are also preferably ormed' as a single casting, the head when in use 'being an uninterrupted annulus.

To permit the convenient assemblage of the. malo. member, tho head. 22' and Spring 24,.

oonstrut the hood 22. and its ango 23 as illustrated b 9, 10 and' 11.

The said .ad and fange are originally from o Suitable malleable metal. or alloy, in the folrn shown by Figures 9 and 10, the head being provided with notches 26, formed and arranged to pass over the studs 20. The casting is provided with ears 27, Which, as originally formed, projeot. Qutwwdly rm'jtheY hond, as shown by Figure 10, so that they donot obstruct the notches 26. In assembling the parts, I plaee the spring 24 on the male member between the studs 20 and enlargement 21, and then move the head 22 and Harige 23, when in the condition shown by Figure 10, over the Studs 2O in the direction indicated b the arrow Figure if), the movement of. t.. o hoard @nel ange being Continued. uut-ii the is separated; roai the Studia 20; as indioated by Eignre LL.. 'Ello ears 2.7' are than. bont inward, and mused to fill the matches l and thus, restare the oentinurty of theA head, which is. incapable ofv passing over the studs 20.

The. head 2251s rotatable on the wie mmber so that it may be turned to more the notches. 26 out ofY alinmeut with.4 the. studs 20- hefore the ears; 2.7 are. bent inizrarhr so that it, is. not noessa. to force the head inwardly fromV the stu S. 'to tho extent cated by Figure 11,. In. fact, the head. may be in oontaet. with. the stmk, as shown bry Figure 8, While the ears areheinghent,

The hea-d 22 and. its flange 2 3; oontiluto a sprl' oever or housm l sprinto be employeand pir 'noting the by segments. ribs, Whose ends aref apart toform longitudinal slots extending from the end face to the bore enlargement, the inner sides, of said ribs being. provided with recesses opening inte the enlargumt, a tubular malo member having an entering portion formed to enter .said Enreandi Rmridodi with studs, adapted' toY he moved' 'forward through. said slots, laterallyv in. enlargement, andi backward into ms rocesses, and with an enlargement spaeedl from said. Studs and forming a Spring aflituwnt, i

a helical' spri.. surroimdi. the onto portion betwooiihe saidv ahuient and seated at one end on said abutment, anni an annular head. loosely eurrou tho entering portion. and. interposed between( the. OPPOSItoond of .Saad s131311 and' the said studs, Saud. head hay" 0 at t one. a-rwont the female member a anged anmulgg pm tion which, when the coupling is separated, fied by claim 1, the said head being provided abuts the studs, and which, when the parts with notches adapted to pass over said studs, are in coupled relation, abuts and extends and with an annular flange covering said 15 across the annular end face of the female spring and guided by said enlargement, the

5 member for the purpose described. head being provided with notches adapted 2. A hose-coupling substantially as specito pass over said studs, and with ears which fied by claim 1, the said head being provided are bent inwardly to close said notches and with notches ada ted to pass over said studs, 'render the head continuous, the head and 20 and with means ibr closing said notches and flange being rotatable on the male member.

10 rendering the head continuous, the head be- In testimony whereof I have aixed my ing rotatable on the male member. signature.

3. A hose-coupling substantially as speci- CHARLES A. CLAFLIN. 

